Commands by jetdillo (3)

  • add untracked/changed items to a git repository before doing a commit and/or sending upstream

    I came up with this because I don't have a problem remembering the big major changes I made deep inside my tree for a specific feature or bugfix but always manage to forget the trivial stuff I tweaked or touched along the way that needs to get pushed as well. Show Sample Output


    0
    git status|awk '/modified:/ { printf("git add %s\n",$3) }; NF ==2 { printf("git add %s\n",$2) }'|sh
    jetdillo · 2012-09-03 00:09:04 1
  • Kill all processes belonging to a user

    Okay, commands like this are a bit of a personal peeve. awk(1) operates on a /pattern/ {action} paradigm and yet I see people leave out the /pattern/ portion of an awk command all the time, opting to use grep or sed instead. You'll save yourself some typing and time if you include the /pattern/ with your {action}.


    0
    ps wwwwuax|awk '/command/ { printf("kill -9 %s\n",$2) }'|/bin/sh
    jetdillo · 2012-08-14 21:44:38 1
  • extracts 64 bytes of random digits from random lines out of /dev/random sent to stdio

    Use this the next time you need to come up with a reasonably random bitstring, like for a WPA/WPA2 PSK or something. Takes a continuous stream of bytes coming from /dev/urandom, runs it through od(1), picking a random field ($0 and $1 excluded) from a random line and then prints it. Show Sample Output


    1
    cat /dev/urandom|od -t x1|awk 'NR > line { pos=int(rand()*15)+2;printf("%s",$pos);line=NR+(rand()*1000);digits = digits+2 } digits == 64 { print("\n");exit }'
    jetdillo · 2012-08-14 19:02:00 3

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